package thread;

import java.util.Scanner;

public class SleepDemo {
    public static void main(String[] args) {
//        System.out.println("程序开始了");
//        try {
//            Thread.sleep(5000);
//        } catch (InterruptedException e) {
//            e.printStackTrace();
//        }
//        System.out.println("程序结束了");

        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入一个数字:");
        for (int i=scanner.nextInt();i>=0;i--){
            System.out.println(i);
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        System.out.println("时间到!程序结束了");
    }
}
